Fan.



PATENTED PEB.14,1905.

G. W. DAVIS.

FAN.

APPLICATION FILED JUNE 1, 1903.

Patented February 14, 1905.

PATENT OFFICE.

GEORGE VV.-DAVIS, OF ST. LOUIS, MISSOURI.

FAN.

SPECIFICATION forming part of Letters Patent No. 782,437, dated February14, 1905.

Application filed June 1, 1903- Saris-1N0. 159,536-

To all whom it may concern-.-

Be it known that I, GEORGE W. DAVIS, a citizen of the United States,residing in the city of St. Louis, in the State of Missouri, haveinvented certain new and useful Improvements in Fans, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming part of this specification.

My invention relates to a fan for use in connection with sewing-machinesor machines of other descriptions in which the mechanism is operatedthrough the medium of a belt.

The object of the present improvement is to provide a fan in the use ofwhich currents of air may be blown in opposite directions for coolingefl'ect at both sides of the fan.

My invention consists in features of novelty hereinafter fullydescribed, and pointed out in the claim.

Figure I is a perspective view of my fan illustrated as applied to asewing-machine. Fig. II is a rear elevation of the fan. Fig. III is aside elevation of the fan.

For the purpose of illustrating the use of my fan I have shown in Fig. Ithe outline of a sewing-machine A, having a belt-wheel B, to which abelt C is applied.

1 designates the supporting-post, in which my fan is mounted. This postispreferably in the form of a birds leg,.as shown, and at its lower endis a base 2, adapted to be fastened to the table Dbf a sewing-machine orother machine in connection with which the fan is used by a pivot-screw3. By using the pivot-screw 3 to secure the post 1 I provide forrotation of the-post for the purpose to be hereinafter explained. At theopposite end of the post 1 is. a pair of claws 4, which constitute thebearing-arms for a rotative shaft 5, journaled therein. Fixed to saidshaft 5 is a friction-disk 6, that receives the belt C of thesewing-machine or may have applied to it the belt of any otherdescription of machine in connection with which it is possible' to usemy fan.

7 and 7 designate fan-blades fixed to the rotative shaft 5, whichconsist of a series of wings, the wings of one of the sections beingbent sidewise and outwardly from the plane of the axis of the shaft 5 inone direction and the wings of the other section being bent sidewise andoutwardly from the plane of the axis of saidshaft so as to be presentedin the opposite direction to that of the first section.

By the fan construction shown and described herein I am enabled toproduce currents of air directed from both sides of the fan, so as to beobtained by two persons situated at opposite sides of the fan. Thisarrangement is very desirable in connection with a sewing-machine,inasmuch as it provides a current of air that may be directed toward theoperator of the machine when the fan is in position as seen in Fig. I,and a second current of air, which is directed toward a person sittingat the end of the machine, thereby furnishing a cooling agency for bothpersons when so situated. By pivoting the base of the fan-supportingpost 1 to the table of the machine upon which it is used it will be seenthat said post may be rotated to vary the position of the fan withrespect to the person or persons using it, and thereby causing thecurrents of air to be thrown in varying directions according to theposition occupied by the person onto whom the current of air is to bethrown. I have shown the fan position in front of the beltwheel of themachine; but it may be positioned at the rear of such wheel to beoperated by the belt-wheel with the same efliciency as in the positionshown.

While I have shown my fan as applied to a sewing-machine, I do not wishto be limited to its use in this particular connection, as it may bereadily applied to various other mechanismsuch, for instance, as dentalengines.

While I have described my fan as having two fan-sections, it is evidentthat it may be constructed with a single section, thereby providing amore simple and cheaper construction in the use of which a current ofair will be blown in one direction only instead of in two directions.

I claim as my invention In a fanfor use in connection with asewing-machine, a vertical standard havinga flat base, a singlepivot-screw in said base eccentric With the standard for rotaryadjustment of the on the other side of the journal for engagebase andthe standard on the lmachine-table,da ment with the driving-belt of themachine. pair of bearing-arms integra with the stan ard at the upper endthereof, a horizontal shaft GEORGE DAVIS 5 journaled in saidbearing-arms, a-rotary fan In presence of secured to said shaft on oneside of the journal, E. S. KNIGHT,

a grooved friction-disk secured to the shaft M. P. SMITH.

